<template>
<div class="login_container">
    <div class="login_box">
        <!-- 头像 -->
        <div class="avatar_box">
            <img src="../assets/logo.png" alt="">
        </div>
        <!-- 标题 -->
        <div class="title">
            Vue电商后台管理系统
        </div>
        <!-- 表单 -->
        <el-form class="login_form" :model="loginForm" :rules="loginFormRules" ref="loginFormRef">
            <el-form-item prop="username">
                <el-input v-model="loginForm.username" placeholder="请输入用户名" prefix-icon="iconfont icon-user"></el-input>
            </el-form-item>
            <el-form-item prop="password">
                <el-input v-model="loginForm.password" placeholder="请输入密码" prefix-icon="iconfont icon-3702mima" show-password></el-input>
            </el-form-item>
            <el-form-item class="btns">
                <el-button type="primary" @click="login">登陆</el-button>
                <el-button type="info">重置</el-button>
            </el-form-item>
        </el-form>    
    </div>
</div>
</template>

<script>
export default {
    data(){
        return {
            // 表单的数据绑定对象
            loginForm:{
                username:'admin',
                password:'123456'
            },
            // 表单校验的规则
            loginFormRules:{
                username:[
                    { required: true, message: '请输入登陆账号', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password:[
                    { required: true, message: '请输入登陆密码', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ],
            }
        }
    },
    methods: {
        login(){
            this.$refs.loginFormRef.validate(async valid => {
                // 判断是否校验成功
                if(!valid){
                    return
                }

                // 向后台发送请求
                const {data:res} = await this.$http.post('login',this.loginForm)

                if(res.meta.status !== 200){
                    return this.$message.error('登陆失败');
                }

                console.log(res);
                // 将token保存到SessionStorage中
                sessionStorage.setItem('token',res.data.token)
                // this.$message.success('登陆成功');
                this.$router.push('/home')
            })
        }
    },
}
</script>

<style lang="less" scoped>
.login_container{
    background: #2b5b6b;
    height: 100%;
    .login_box{
        width: 450px;
        height: 350px;
        background: #fff;
        border-radius: 3px;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%,-50%);
        .avatar_box{
            width: 130px;
            height: 130px;
            border: 1px solid #eee;
            border-radius: 50%;
            position: absolute;
            left: 50%;
            transform: translate(-50%,-50%);
            background: #fff;
            box-shadow: 0 0 10px #eee;
            padding: 10px;
            img{
                width: 100%;
                height: 100%;
                border-radius: 50%;
                background: #eee;
            }
        }
        .title{
            position: absolute;
            top: 100px;
            left: 50%;
            transform: translate(-50%);
            font-size: 20rpx;
            font-weight: bold;
        }
        .login_form{
            position: absolute;
            bottom: 0;
            width: 100%;
            padding: 0 20px;
            box-sizing: border-box;

            .btns{
                text-align: center;
            }
        }
    }
}
</style>
